4/16/2007 @ 12:10PM

In Pictures: The World's Cleanest Cities

#10 (Tie) Vancouver, Canada

Population: 587,891

Metro area: 114 square km

Vancouver, in British Columbia, is Canada’s major port and a significant air terminal. It is a center of forest product and mining companies. It has emerged as an important place for software development, biotechnology, and the film industry. It has a broad array of public transportation including trams, interurban trains, ferry services and is mostly clear of motorways.